Diaphragm Valves

SL-DV51BL-FNT4
SL-DV51PS-VM-K
Title:
Diaphragm Valves
DV51 Series

Features

• Suitable for high purity applications

• Connections: FSR, NPT and GENLOK 

• Internal spring-less design

• Metal-to-metal seal minimizes particle generation and ensures purity integrity in the flow passages

• Long service life

• 100% Helium leak tested

 

Spec Sheet

SL -

DV51

M 

L -

VM4 - NT4 -NO

Body Material

Model

Actuation

Working Pressure

Inlet / OutletOptions

SL: 316L

DV51

M: Handwheel (with status window)

P: Pneumatic actuator (Normally closed)

B: Handle

N: Handwheel (without status window)

L: 300 psi

S: 150 psi

NT4

FNT4

TF4

VM4

Blank: Standard

NO: Normally open (Pneumatic)

 

• Maximum operating pressure: 300 psi (20 bar)

• Minimum operating pressure: Vacuum

• Proof pressure: 150% of maximum operating pressure

• Burst pressure: 400% of maximum operating pressure

• Temperature range: 40˚F~150˚F (-40˚C~ 65˚C)

• Inboard leakage: 1 x 10-9 atm cc/sec He

• Leakage across seat: 4 x 10-9 atm cc/sec He

•  Cv: 0.2

 

• Body: 316L

• Seat: PCTFE

• Diaphragm: Elgiloy®

 

• Operating pressure: 70-125 psi (DV51PL); 60-90 psi (DV51PS)

• Inlet connection: 1/8" NPT(F)

• Working Status: Normally closed

 

• Standard Ra: 20 µin